The uncomfortable mistake before Serena Williams' win, & more in News in 5.

-With AAP

1. Serena Williams classy move ahead of her win against Simona Halep.

Serena Williams overcame Romanian Simona Halep in three sets on Monday night – but not before a very awkward moment walking out on to the court.

As the 23-time grand slam champion walked on to Rod Laver Arena, the announcer began: “The world’s number one player…”

“…from Romania, Simona Halep.”

”Please welcome world no.1..”
*Serena enters*
”Oh wait”
???????????????? pic.twitter.com/VmNHwVb90z

— SimoReactions (@Simoreactions) January 21, 2019

Rather than bring attention to the gaffe, however, Williams simply turned around and walked back in to allow Halep to walk out.

The Romanian may be the current world number one, but Willaims managed to vanquish her last night.

Williams blazed through the first set in just 20 minutes but had to fight tooth and nail to put away the valiant Halep, prevailing 6-1 4-6 6-4 to book a quarter-final clash with Czech seventh seed Karolina Pliskova.

The victory, just 16 months after giving birth to daughter Olympia, secures an astonishing 50th grand slam quarter-final appearance for the 37-year-old American.

The seven-time Australian Open champion nonetheless played down her form heading into the final eight.

“I think overall I’m hanging in there … I’m solid,” Williams said.

“I can definitely go to a new level. I have to if I want to stay in the tournament.”

Listen to Mia Freedman’s conversation with Serena Williams about her tennis comeback, life as a working mum and that US open dispute:

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Playing in just her eighth tournament since becoming a mother, Williams conceded she was still finding her way back to her best.

2. Vigil for Aya Maasarwe tonight as her body is brought home.

As her family prepare to take her home, a public vigil will be held for Aya Maasarwe near where her body was found in suburban Melbourne.

Mourners are invited to pay their respects at the corner of Plenty Road and Main Drive, near the Polaris Shopping Centre at 6.30pm on Tuesday.

Organiser Kelsey Wilson said visitors will be able to pay their respects and there will be a short reading.

It comes a day after Ms Maasarwe's alleged murder faced court for the second time.

Aspiring rapper Codey Herrmann, 20, appeared in Melbourne Magistrates Court on Monday charged with Ms Maasarwe's rape and murder.

Ms Maasarwe's father travelled to Melbourne last week, meeting with police and attending a vigil for his daughter.

Ruba Maasarwe, who was on a video call with her sister when she was attacked, is also in Melbourne but other members of her family remain in Israel.

Preparations are being made to repatriate her body to Baka al Gharbiyye after it was released by the Victorian coroner on Monday.

3. Woman injured in Prince Philip crash wants him to be charged.

The passenger who broke her wrist in the car crash involving the Duke of Edinburgh says she wants Prince Philip to face prosecution if he is found to be at fault.

Emma Fairweather, speaking on British TV, also says Philip is "highly insensitive and inconsiderate" after he was spotted driving while not wearing a seatbelt just days after the crash.

"There needs to be a decision as to whether Prince Philip and I are from the same walk of life here or not," she said.

"I feel that his treatment has not been the same as mine."

Fairweather added that she was still waiting to give the police a statement.

"I need somebody to understand that I still have medical concerns. I'm very worried that I haven't been asked for a statement from the police," she said.

She added that she had received a message from one of the Queen's ladies in waiting.

"She left me a voicemail that was just an hour or two before my interview with the papers became known ... to say that the Queen wished me well, and that she would like to call me back but she was going out for the evening."

4. Fraser Island camp closed after six-year-old was bitten by a dingo.

Authorities are looking into whether people were feeding a pack of dingoes before they mauled a 6yo boy on Fraser Island. #9Today pic.twitter.com/ywf5OyltpF

— The Today Show (@TheTodayShow) January 20, 2019

Rangers are monitoring a pack of dingoes on Queensland's Fraser Island where a campsite remains closed after a boy was bitten.

The six-year-old boy was still recovering in hospital on Tuesday after being bitten several times on the leg near the Govi camping area on Saturday night.

The incident happened very quickly, and was a shock to the family, the father says in a statement issued by the Wide Bay Hospital and Health Service.

He said his son was just in the wrong place at the wrong time.

"We understand that the island is home to the dingoes, and that this was just an unfortunate incident," the statement says.

"We think the rangers on Fraser Island do a great job of raising awareness about dingoes, and that on the whole, people who stay on the island respect the dingoes and the advice of the rangers."

The family says the boy is recovering well and is expected to go home soon.

Queensland Parks and Wildlife Service Rangers have stepped up their regular patrols.

They are also speaking to campers, day tourists and accommodation management and staff about reducing the risks of negative interactions between people and the island's dingoes.

The Govi campground has been closed until further notice.

5. Sugary drink health warning for young Aussies.

Aussie teens could soon be flashing shonky smiles if they don't give up their addiction to sugary drinks that not only affect their health, but their teeth too.

They are being warned not to be sucked in to downing soft drinks, sports drinks or energy drinks after the Rethink Sugary Drink revealed some males are consuming as much as 1.5 litres a day.

The "Thirsty" campaign will be launched on Wednesday, showing gritty and graphic images of the damage the drinks do to teeth.

Supported by the Cancer Council of Victoria, the campaign will focus on the "manipulative sweet deal" big brands are selling consumers and the horror story smiles dentists see firsthand.

Did you know?

- Sugar-sweetened beverages are high in kilojoules, leading to weight gain and obesity.

- Many drinks contain acid that harms your teeth, including regular and diet soft drinks, sports/energy drinks and fruit juices. Acid weakens tooth enamel which can lead to tooth decay. Tooth decay is the most prevalent disease in Australia.

- Sugar-sweetened beverages produce more acid when the sugar combines with bacteria in the mouth.

(Source: www.rethinksugarydrink.org.au)